Extrusion



FIG. 1 is an above front perspective view of an extrusion showing my new design;

FIG. 2 is a below rear perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left view thereof;

FIG. 6 is a right view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is an underneath view thereof.

The double broken lines in the various figures indicate that the design is of indefinite length and do not form part of the claimed design. 

CLAIM I claim the ornamental design for an extrusion, as shown and described. 